Heat and frost insulators and asbestos workers.

For the purpose of the Washington state public works law, chapter 39.12 RCW, heat and frost insulators and asbestos workers apply insulation materials to mechanical systems to reduce loss or absorption of heat, prevent moisture condensation and to deaden sound and prevent vibration.

The work includes, but is not limited to:

• The preparation and physical distribution on the job site of asbestos, cork, plastic, magnesia or similar insulation materials.